Multiple pulse-width multiplier

Details Multiple pulse-width multiplier Multiple pulse-width multiplier

1980-05-09

1982-06-15

Atkinson, Charles E.

Boots, shoes, and leggings

364817, 364841, G06G 722

Patent

active

043354440

ABSTRACT:
For forming ##EQU1## in a pulse width multiplier, two input voltages b.sub.i are summed at the input of an inverter and are added, after each passes through a separate switch and proportional stage, at the input of a smoothing stage, to the inverter output signal. The switches are actuated by switching pulses which are width-modulated in accordance with the factors c.sub.i. The calculated sum is present at the output of the smoothing stage. Great accuracy in field-oriented control of rotating-field machines is possible when vector analyzers and vector rotators designed in this manner are used.

REFERENCES:
patent: 2880935 (1959-04-01), Johnson
patent: 2927734 (1960-03-01), Vance
patent: 3473011 (1969-10-01), Schmid
patent: 3671731 (1972-06-01), Denoncourt et al.
patent: 3825738 (1974-07-01), Blaschke et al.
patent: 4250559 (1981-02-01), Blaschke

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